Coauthors (number of joint papers or books published or accepted): years of publication

Alexandru ALEMAN (3): 2009, 2 in 2010
Venancio ÁLVAREZ (1): 2004
Irina ARÉVALO (2): 2018, 2020
Milos ARSENOVIC (1): 2016 (book)
José BONET (2): 2013, 2017
Ole Fredrik BREVIG (1): 2016  
Stephen M. BUCKLEY (5): 2 in 1999, 2001, 2006, 2008                                                                                                                
Manuel D. CONTRERAS (2): 2012, 2014
Santiago DÍAZ-MADRIGAL (2): 2012, 2014
Juán J. DONAIRE (2): 2002, 2010
Milutin DOSTANIC (1): 2008                                                                                                                                   
Peter L. DUREN (2): 2005, 2010
Iason EFRAIMIDIS (1): 2018  
José L. FERNÁNDEZ (1):  2001
Daniel GIRELA (5): 2002, 2 in 2007, 2008, 2010
Rodrigo HERNÁNDEZ (1): 2018    
Miroljub JEVTIC (2): 2008, 2016 (book)
Pekka KOSKELA (1): 1999
M. Auxiliadora MÁRQUEZ (1): 2004
María J. MARTÍN (12): 2005, 3 in 2006, 2007, 2010, 2012, 2013, 2015, 2 in 2018, 2020,
Alejandro MAS (1): 2020
Miroslav PAVLOVIC (1): 2006
José Ángel PELÁEZ (3): 2 in 2007, 2008
Fernando PÉREZ-GONZÁLEZ (1): 2007
Karl-Mikael PERFEKT (1): 2016
Melapalayam S. RAMANUJAN (1): 1999
Jouni RÄTTYÄ (1): 2007
Eric T. SAWYER (1): 2015
Alexander P. SCHUSTER (1): 2005
Kristian SEIP (1): 2016
Aristomenis SISKAKIS (1): 2016 
Ignacio URIARTE-TUERO (1): 2015